Timeline for Could a planet orbiting a g type main sequence star have yellow on its surface?
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 9, 2023 at 17:56 | comment | added | Jerry Robinson | So i could make my planets plants red and orange and yellow? Hmm | |
| Oct 9, 2023 at 15:41 | comment | added | AlexP | @Richard Kirk: Land plant pigments absorb almost all light. (No plant uses only one pigment.) They absorb green light less than red or blue, and red more than blue; but still, most green light is absorbed not reflected. This is why they appear dark green. Go outside and take a black and white picture. You will notice that grass and foliage appear dark in the picture. If you have a reasonably decent raster image editor, take a color picture of a white object against the backdrop of grass or foliage etc. Then at home compare the RGB pixel values of the white object and of the grass or foliage. | |
| Oct 9, 2023 at 11:44 | comment | added | Richard Kirk | @AlexP There are several sorts of chlorophyll. All absorb the short blue wavelengths, do not absorb green, and absorb some deep red. Chlorophyll is why many green living things look green. I do not understand how chlorophyll is 'dark'. | |
| Oct 9, 2023 at 11:23 | comment | added | Richard Kirk | @JerryRobinson Red, orange, yellow, green all fine for gathering energy. Blue for flowers. | |
| Oct 9, 2023 at 8:57 | comment | added | Jerry Robinson | Yellow plants are a go then | |
| Oct 9, 2023 at 8:33 | comment | added | AlexP | @JerryRobinson: Xanthophytes and Phaeophytes do exist. And Rhodophytes too... It so happened that our familiar land plants are descended from green algae. | |
| Oct 9, 2023 at 8:26 | comment | added | AlexP | Chlorophyll is dark. It absorbs all light, but it just happens to absorb red light more than green or blue, and blue a little more than green. Or, in other words, in reflects green light a little more than blue, and blue much more than red. But, on the balance, it is dark and absorbs a lot more light than it reflects. (Ah, and Rhodophytes do exist. The Rhodophyceae are actually the sister group of the green Viridiplantae.) | |
| Oct 9, 2023 at 8:20 | comment | added | Jerry Robinson | Welp i can always make the plants yellow so theres that | |
| Oct 9, 2023 at 8:19 | history | answered | Richard Kirk | CC BY-SA 4.0 |